/// <summary>
/// Read the next six tokens and parse them as a
/// Six-vector's X, Y, Z, XX, YY and ZZ coordinates.
/// The position of the reader will
/// then move along to the next token after these, such that repeated calls
/// to Next___() will return each token in sequence.
/// </summary>
/// <returns></returns>
public SixVector Next6AsSixVector()
{
var result = SixVector.FromTokensList(_Tokens, _Index);
Index += 6;
return(result);
}
/// <summary>
/// Initialise a new node support with the fixed dimensions specified
/// and the given stiffnesses in the other directions
/// </summary>
/// <param name="fixity"></param>
public NodeSupport(Bool6D fixity, SixVector stiffness) : this(fixity)
{
_Stiffness = stiffness;
}
/// <summary>
/// Initialise a new vertex releases component with the specified
/// releases and stiffnesses. Note that the stiffness values will
/// typically be ignored in directions which are not also released.
/// </summary>
/// <param name="releases"></param>
/// <param name="stiffness"></param>
public VertexReleases(Bool6D releases, SixVector stiffness) : this(releases)
{
_Stiffness = stiffness;
}
/// <summary>
/// Update the properties of a Nucleus node from a GWA string
/// in NODE.2 version syntax
/// </summary>
/// <param name="node"></param>
/// <param name="gwa"></param>
public void ReadNode(string gwa, Model.Model model, GSAConversionContext context)
{
// NODE.2 | num | name | colour | x | y | z |
// is_grid { | grid_plane | datum | grid_line_a | grid_line_b } | axis |
// is_rest { | rx | ry | rz | rxx | ryy | rzz } |
// is_stiff { | Kx | Ky | Kz | Kxx | Kyy | Kzz } |
// is_mesh { | edge_length | radius | tie_to_mesh | column_rigidity | column_prop | column_node | column_angle | column_factor | column_slab_factor }
var tr = new TokenReader(gwa);
tr.Next(); // NODE
string gsaID = tr.Next(); // num
string name = tr.Next(); // name
tr.Next(); // colour
Vector position = tr.Next3AsVector(); // x | y | z
var node = context.IDMap.GetModelObject <Node>(model, gsaID);
if (node == null)
{
node = model.Create.Node(position);
}
else
{
node.Position = position;
}
node.Name = name;
if (tr.NextIs("GRID"))
{
tr.Skip(4); // is_grid { | grid_plane | datum | grid_line_a | grid_line_b }
}
tr.Next(); // axis !!!TODO!!!
Bool6D fixity = new Bool6D();
if (tr.NextIs("REST")) // is_rest
{
fixity = tr.Next6AsBool6D("1");
}
SixVector stiffness = null;
if (tr.NextIs("STIFF")) // is_stiff
{
stiffness = tr.Next6AsSixVector();
}
if (!fixity.AllFalse || (stiffness != null && !stiffness.IsZero()))
{
var nodeSupport = new NodeSupport(fixity);
if (stiffness != null)
{
nodeSupport.Stiffness = stiffness;
}
//TODO: Axis
node.SetData(nodeSupport);
}
else
{
node.Data.RemoveData <NodeSupport>(); //Clear restraints on existing nodes
}
context.IDMap.Add(node, gsaID);
}
